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Nonlinear Pulse Oscillator Methods And Apparatus - Patent 8154354

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Nonlinear Pulse Oscillator Methods And Apparatus - Patent 8154354 Powered By Docstoc
					
				
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Description: FIELD OF THE DISCLOSURE The present disclosure relates generally to nonlinear pulse oscillators and, more particularly, various examples of self-starting and self-sustaining electrical soliton and quasi-soliton oscillator methods and apparatus employing nonlineartransmission lines and spectrum-preserving nonlinear amplification.BACKGROUND Conventional traveling wave oscillators, employed in many electronics applications requiring high-speed clock signals (e.g., on the order of several gigahertz), are linear systems that generally employ a linear transmission line over whichsinusoidal waves of a particular frequency are propagated. In such systems, linear amplifiers are employed to overcome resistive losses present in the transmission line so as to maintain the signal strength of the traveling sinusoidal wave and permitoscillation. While such linear oscillator systems have found application in the area of high-speed electronics, for example, ongoing research in nonlinear systems has raised interest in the practical merits of such systems as an alternative to linearsystems, and possible applications for non-sinusoidal waveforms traveling in nonlinear media. It is generally appreciated in mathematics and the physical sciences that any arbitrary non-sinusoidal waveform in space and/or time may be represented by multiple sinusoidal waveforms of varying frequencies, amplitudes and phases superimposedupon one another. This idea of a given waveform having multiple different-frequency sinusoidal components, commonly referred to as a Fourier spectrum, has interesting implications for non-sinusoidal waveforms that travel over some distance from onepoint to another via some medium. In particular, an arbitrary waveform traveling through a medium may or may not be significantly affected or altered (e.g., distorted in shape) by the medium, depending on how the waveform's constituent sinusoidal components are affected by themedium. The medium of a perfect vacuum may be viewed a